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View Full Version : Astronomers See the Exact Moment a Supernova Turned into a Black Hole (or Neutron Sta



Fraser
2019-Jan-14, 09:40 PM
On June 17th 2018, the ATLAS (Asteroid Terrestrial-impact Last Alert System) survey’s twin telescopes spotted something extraordinarily bright in the sky. The source was 200 million light years away in the constellation Hercules. The object was given the name AT2018cow or “The Cow.” The Cow flared up quickly, and then just as quickly it was …
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